Type: VENEZUELA. DISTRITO FEDERAL: Cerro Naiguata, on rocks, N-facing side above village of Naiguata, Toma Mata de Platano, 9 km W of Los Tanques de Electricidad de Caracas, 1000 m, the specimen cultivated in the garden of Julian and Cora Steyermark, Caracas, flowering 22 May 1976, Julian A. Steyernwrk 112181 (HOLOTYPE: US; ISOTYPE: VEN)